Boyd’s Bible Dictionary:

(God’s secret). (1) Ninth in order of the twelve minor prophets. Son of Cushi and a descendant of Hezekiah. He flourished during the reign of King Josiah, B. C. 641-610. His prophecy constitutes the 36th O. T. book, and denounces Judah, Nineveh, and surrounding nations, and records many cheerful promises of gospel blessings. The style is characterized by grace, strength, and dignity. (2) Son of Maaseiah and priest in the reign of Zedekiah (Jer. 21:1; 29:25-29; 37:3; 52:24-271The word which came unto Jeremiah from the Lord, when king Zedekiah sent unto him Pashur the son of Melchiah, and Zephaniah the son of Maaseiah the priest, saying, (Jeremiah 21:1)
25Thus speaketh the Lord of hosts, the God of Israel, saying, Because thou hast sent letters in thy name unto all the people that are at Jerusalem, and to Zephaniah the son of Maaseiah the priest, and to all the priests, saying, 26The Lord hath made thee priest in the stead of Jehoiada the priest, that ye should be officers in the house of the Lord, for every man that is mad, and maketh himself a prophet, that thou shouldest put him in prison, and in the stocks. 27Now therefore why hast thou not reproved Jeremiah of Anathoth, which maketh himself a prophet to you? 28For therefore he sent unto us in Babylon, saying, This captivity is long: build ye houses, and dwell in them; and plant gardens, and eat the fruit of them. 29And Zephaniah the priest read this letter in the ears of Jeremiah the prophet. (Jeremiah 29:25‑29)
3And Zedekiah the king sent Jehucal the son of Shelemiah and Zephaniah the son of Maaseiah the priest to the prophet Jeremiah, saying, Pray now unto the Lord our God for us. (Jeremiah 37:3)
24And the captain of the guard took Seraiah the chief priest, and Zephaniah the second priest, and the three keepers of the door: 25He took also out of the city an eunuch, which had the charge of the men of war; and seven men of them that were near the king's person, which were found in the city; and the principal scribe of the host, who mustered the people of the land; and threescore men of the people of the land, that were found in the midst of the city. 26So Nebuzar-adan the captain of the guard took them, and brought them to the king of Babylon to Riblah. 27And the king of Babylon smote them, and put them to death in Riblah in the land of Hamath. Thus Judah was carried away captive out of his own land. (Jeremiah 52:24‑27)
). (3) A Kohathite Levite (1 Chron. 6:3636The son of Elkanah, the son of Joel, the son of Azariah, the son of Zephaniah, (1 Chronicles 6:36)). (4) Father of Josiah and Hen (Zech. 6:10,1410Take of them of the captivity, even of Heldai, of Tobijah, and of Jedaiah, which are come from Babylon, and come thou the same day, and go into the house of Josiah the son of Zephaniah; (Zechariah 6:10)
14And the crowns shall be to Helem, and to Tobijah, and to Jedaiah, and to Hen the son of Zephaniah, for a memorial in the temple of the Lord. (Zechariah 6:14)

Concise Bible Dictionary:

Strong’s Dictionary of Hebrew Words:

or Tsphanyahuw {tsef-an-yaw'-hoo}; from 6845 and 3050; Jah has secreted; Tsephanjah, the name of four Israelites
KJV Usage:

Jackson’s Dictionary of Scripture Proper Names:

treasured of Jehovah

Potts’ Bible Proper Names:

He hid; Jab has secreted, i. e., protected:―name of four Israelites, Zeph. 1:1. {Abscondit}